what is the difference between Servlet and JSP?Advantage of JSP over

. The main difference between them is, In servlets both the presentation and business logic are place it together. Where as in jsp both are saparated by defining by java beans . In jsp's the overall code is modulated so the developer w

Difference between Include, Forward and sendRedirect in Servlet?

Response.sendRedirect () This function is used, when we want to redirect the client request to some other site (i.e out of our context) or when ever we want to redirect errors. If you are using sendRedirect (), then it will be visible to the

What is ServletContext() and what is its use?

Assume that ServletContext is shared momeroy for all servelts which are existed in a web application, we can place an object on to the servletcontext, and that can uses all other servlets which are exited in the web application.

How do you pass the data from one servlet to another servlet?

Using Request Dispatcher, you can send the values and forward to another page. ServletContext.getRequestDispatcher(); reqDispatcher.forward(req,res) Forwards a request from a servlet to another resource (servlet, JSP file, or HTML file) on the

What is the difference between servlet config and servlet context.

Servlet config is a private area for every servlet.Any variable stored there is accessible to only that servlet while sevlet context is a shared area for every servlet in an application.In an aaplication every servlet can access the variable

What is Single Threaded Model in Servlets? Explain this with an exam

Single Thread Model ensures that servlet handles only one request at a time.When YOUR CLASS IMPLEMENTS THIS INTERFACE WE ARE GUARENTEED THAT no two threads run simultaneously in service() method. this is a marker interface which contains no me

How to make servlet thread safe?

There are situations where we want to protect your servlet member variables from being modified by different clients.In this case you can have your servlet by implementing the marker interface SigleThreadModel. Everytime a client makes reque

What is difference between Forward() and sendRedirect() methode?

In the case of forward() the server will redirect to the next page but in the case of sendRedirct() the server will inform the browser to redirect the url to the next page.

How to run a servlet program?

We have to Make a WEB-INF folder and under it classes folder. In WEB-INF we have to write web.xml . Our compled servelet class file should be stored in classes folder. Make a war file using jar & deploy in Web.

can i call destroy() method in init() method of servlet

yes, u can call destroy() method in init() of Servlet. but calling destroy() in this way doesnt unload servlet from servlet container.

Which method the Servlet container call to create the instance of th

servlet container creates the init() method

how can we create object to a class in a jsp file?

use the page import tag to import ur class and execute methods of the class < % @ page import = packageName.Classname %> <% ImportedClass object = new ImportedClass(); object.executeMethods(); %> Please check for some docu

we cant Override Jsp Service method?Why?

_jspService() method will be written by the container hence any methods which are not to be overridden by the end user are typically written starting with an '_'. This is the reason why we don't override _jspService() method in a

Can we override the ActionServlet?

Yes we can modify the functionality of Action Servlet. to do this we have to extend the RequestProcessor class and overwrite the processPreprocess method. and then add following tag in Struts-config.xml

Top Servlets Interview Questions :: ALLInterview.com